解题代码
import java.util.Scanner;
public class Main {
public static void main(String[] args){
Scanner scanner = new Scanner(System.in);
int n = scanner.nextInt();
n = 1024 - n;
int s64 = n/64;
int a64 = n%64;
int s16 = a64/16;
int a16 = a64%16;
int s4 = a16/4;
int s1 = a16%4;
int s = s1+s4+s16+s64;
System.out.print(s);
}
}